Active is required to maintain normal blood calcium and phosphorus levels.

Explanation:

This vitamin is also known as the sunlight vitamin because it can be absorbed by the body through sunlight. It work more like a hormone, pushing cells to have receptors for it. One of its most importance is inhibiting intestines to absorb calcium, phosphorus etc; maintaining the use and supply of these elements in our bloodstream.

hey there!

so, when you eat, your teeth chew and grind food into smaller pieces. this is mechanical digestion. then reactions aided by digestive enzymes break down large food molecules into smaller molecules. this is chemical digestion. the two processes change the food into simpler substances that can be used by the body for raw materials and energy.

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tobey